Power multiplier



July 14, 1931. w. H. BRAGAw ET AL 1,813,903

POWER MULTIPLI ER Filed Aug. 6. 1930 /a A? /4 w v I nvenlor ,iffiZeasoa, Wfffiragalli A llorney Patented July 14, 1931 I i UNITED STATES PATENT oFFICE WILLIAM H. BRAGAW AND GEORGE w. ELEnsoE, or SILVER CITY, NEW MEXICO POWER MULTIPLIER Application filed August v6, 1930. Serial No. 473,492.

This invention relates generally to mebe noted that we designate our power multichanical power multipliers and particularly plier generally by the numeral and that it to a device of this kind which comprises a is composed of a'wheel 6 having a central wheel or rotatable member for communicatprojection 7 forming a socket 8 in which sock- 5 ing power to a pump, pump jack, walking et a shaft maybe journaled and keyed. Probeam, wind mill or any similar machine or jecting from the other side of the wheel 6 machinery, to multiply the power drive and the perimeter thereof are flanges 10 carthereof. rying the cogs or teeth 11 around the cir- It is an object of this invention to provide oumference of the wheel. The flanges 10 and 10 a power wheel of the type described, which the wheel 6 form a circular recess for the so has the advantages of extreme simplicity, reception of two or more halves 12 and 12a having few gears, which is adaptable to be of a split wheel 13. As shown in Figure 1 constructed in large or small sizes, and is the split wheel 13 is split along a diameter inexpensive and easy to manufacture. as 13a, and a symmetrical curved slot 14 is 15 It is also an object of this invention to disposed to hive its ends terminate beyond 65 provide a wheel of this kind, which requires the said diameter. The form of each curve very little attention, which requires very llttle is-generally that of an S. The. curved porlubrication, which is capable of giving two tions 14a and 14?) are arcs of a circle, and the or more power strokes to its associated maslot is terminated-at each end by the comchine or machinery to each revolution of the panion abutting plate at each end and the 70 wheel. end of the slot cut out to form rounded ends.

It is also an object of the invention to The pieces 12 and 12a are bolted in the reprovide awheel power multiplier of the cess by means of bolts 15 in said abutting retype described which is adaptable to be used lation. Adapted to be disposed in the slot 14 or to be driven by any power whatsoever, are blocks 16 which are bolted therein in or- 75 and which is adaptable to have a driven der to limit the stroke of the connecting rod member composed of cogs, or worm gears, or or the like which is pivoted at one end in it may be driven or have power communithe slot 14 for connecting said wheel to a cated by any suitable means as required. machine for operating the same. The blocks These and other objects, the nature of the 16 may be of different lengths, or a different so invention, its composition, and its arrange number of the blocks may be employed acment and combination of parts, will be clearcording to the length of the stroke of said ly understood by anyone familiar with the connecting rod which is desired to be limited. art to which this invention relates by refer- The bolt 15 may be bolted in or bolted through 5 ring to the descriptions below of the" accomthe wheel 6 as desired. s5 panying drawings, in which It will be obvious that castingthe wheel Figure 1 is a side view or front View 6 in one piece may render the construction showing the operative elements of our miof our improvedwheel very inexpensive, but proved power wheel multiplier. any desired construction may be used at the 40 Figure 2 is a horizontal transverse section option of the maker. The halves ofthe wheel of Figure 1 approximately on its horizontal 13 may likewise be cast in one piece and thus diameter. effect considerable saving. The bolts 15 may It is to be understood that we do not limit also b conomically contributed to the inthe application of this invention to the parexpensiveness of the device by being provided 45 ticular embodiment set forth herein as an ilall of the same size. lustration of our invention, and any change The operation of the wheel is believed obor changes may be made in material orstrucvious in that at a revolution of the wheel ture consistent with the spirit and scope of a. properly connected rod or the like having the invention. a driven connection in the slot 14 willbe given 50 Referring in detail to the drawings, it will two impulses for each revolution of the wheel 5, since the connection of said connecting rod will ride 1n the slot 1 1n power application position until it reaches the half point of a curve and at which point it will drop to the 5 end of the slot and receive its second impulse during the latter half of the revolution of the wheel.

It is obvious that any number of such arrangements may be made, and that the numher of slots and elements of the wheel may be made in different numbers and in different association, without departing from the spirit of the invention.

It is obvious that we have provided a device of this character which is extremely simple, having few gears, which is adaptable to different pieces and types ofinachinery, which requires very little attention and very little lubrication, and which is admirably adapted for the purpose for which it is designed.

lVhat is claimed is 1. A pow-er multiplier wheel comprising a wheel having a mounting for a shaft projecting from one side thereof, and driving means atits periphery, and plates attached to the side of the wheel opposite the shaft mounting, said plates formed to define a diametrically disposed double curved slot for reception of a connecting rod pin, a connecting rod adapted to be driven by said slot and bearing at its outer end said pin, and blocks mounted in said slot to limit the outward movement of said connecting rod pin.

2. A power multiplier wheel comprising a solid wheel, a central axial axle receiving socket on one side thereof, and laterally directed flanges projecting on the opposite side thereof at the periphery of the wheel, and a plurality of plates having circular outer ends,

to enable them to be disposed within the recess formed by said flanges on one side of the wheel, bolts securing said plates in said recess, and said plates having their inner abutting edges cut away to form a plurality of curves centrally registering, said cutting away on said curves forming parallel walled slots between adjacent opposing inner edges of said plates, and said curved slots constituting progressive driving surfaces, a connecting rod having a driving pin at its end, said driving pin adapted to register in said slot and slide therein, said slot formed to impress a plurality of power impulses upon said connecting rod during a single revolution of said wheel.

In testimony whereof we affix our sig1ratures.

WILLIAM H. BRAGAW GEORGE XV. BLEDSOE. 

